Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader
Date
Msg-id 50A4FAC0.8060108@vmware.com
Whole thread Raw
In response to [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Andres Freund <andres@2ndquadrant.com>)
Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Alvaro Herrera <alvherre@2ndquadrant.com>)
Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Alvaro Herrera <alvherre@2ndquadrant.com>)
Re: [PATCH 02/14] Add support for a generic wal reading facility dubbed XLogReader  (Andres Freund <andres@2ndquadrant.com>)
List pgsql-hackers
On 15.11.2012 03:17, Andres Freund wrote:
>
> Features:
> - streaming reading/writing
> - filtering
> - reassembly of records
>
> Reusing the ReadRecord infrastructure in situations where the code that wants
> to do so is not tightly integrated into xlog.c is rather hard and would require
> changes to rather integral parts of the recovery code which doesn't seem to be
> a good idea.
>
> Missing:
> - "compressing" the stream when removing uninteresting records
> - writing out correct CRCs
> - separating reader/writer

I'm disappointed to see that there has been no progress on this patch 
since last commitfest. I thought we agreed on the approach I championed 
for here: 
http://archives.postgresql.org/pgsql-hackers/2012-09/msg00636.php. There 
wasn't much work left to finish that, I believe.

Are you going to continue working on this?

- Heikki



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